<template>
    <div>
        <!-- 面包屑导航-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!--卡片试图-->
        <el-card class="box-card">
           <!-- 搜索与添加区域-->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" :clearable="true" :clear="getUserList()">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="2"><el-button type="primary" @click="dialogVisible = true">添加用户</el-button></el-col>
            </el-row>
            <!--用户列表信息-->
            <el-table :data="userList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="username" label="姓名" width="180"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="editDialogShow(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserInfo(scope.row.id)"></el-button>
                        <el-tooltip class="item" effect="dark" content="分配角色" placement="top-start" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!--分页区域-->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 7]" :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>
        <!--添加用户对话框-->
        <el-dialog title="添加用户" :visible.sync="dialogVisible" width="50%" @close="addDialogClosed">
            <!--表单内容-->
            <el-form :model="addForm" :rules="addFormRules" ref="addForm" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="dialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!--修改用户信息对话框-->
        <el-dialog title="修改用户信息" :visible.sync="editDialogVisible"
            width="50%" @close="editDialogClose">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRefs" label-width="70px" class="demo-ruleForm">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!--分配角色-->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClose">
                <p>当前的用户: {{userInfo.username}}</p>
                    <p>当前的角色: {{userInfo.role_name}}</p>
                    <p>分配新角色： <el-select v-model="selectedRoleId" placeholder="请选择">
                                        <el-option v-for="item in rolesList" :key="item.id"
                                        :label="item.roleName"
                                        :value="item.id">
                                        </el-option>
                                    </el-select>
                    </p>
                <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data () {
        // 验证邮箱规则
        var checkEmail = (rule, value, cb) => {
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if (regEmail.test(value)) {
                // 合法邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号的规则
        var checkMobile = (rule, value, cb) => {
            const reg = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if (reg.test(value)) {
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return {
            // 获取用户列表的参数
            queryInfo: {
                query: '',
                // 当前页数
                pagenum: 1,
                pagesize: 2
            },
            userList: [],
            // 所有角色列表
            rolesList: [],
            // 总条数
            total: 0,
            // 添加用户对话框状态
            dialogVisible: false,
            // 修改用户对话框状态
            editDialogVisible: false,
            // 分配角色对话框状态
            setRoleDialogVisible: false,
            // 分配角色用户信息
            userInfo: {},
            // 选中角色的id
            selectedRoleId: '',
            // 添加用户表单
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 修改用户表单
            editForm: {},
            // 添加用户表单验证规则
            addFormRules: {
                username: [
                        { required: true, message: '请输入用户名', trigger: 'blur' },
                        { min: 3, max: 8, message: '用户名长度在3到8个字符', trigger: 'blur' }
                    ],
                password: [
                        { required: true, message: '请输入密码', trigger: 'blur' },
                        { min: 6, max: 15, message: '密码长度在6到15个字符', trigger: 'blur' }
                ],
                email: [
                        { required: true, message: '请输入邮箱', trigger: 'blur' },
                        { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                        { required: true, message: '请输入手机号', trigger: 'blur' },
                        { validator: checkMobile, trigger: 'blur' }
                ]
            },
            // 编辑用户表单验证规则
            editFormRules: {
                email: [
                    { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入用户手机号', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur' }
                ]
            }
        }
    },
    created () {
        this.getUserList()
    },
    methods: {
        async getUserList () {
            const { data: res } = await this.$http.get('users', { params: this.queryInfo })
            // console.log(res)
            if (res.meta.status !== 200) {
                return this.$message.error('获取用户列表失败！')
            }
            this.userList = res.data.users
            this.total = res.data.total
        },
        // 显示条数
        handleSizeChange (newSize) {
            // console.log(newSize)
            this.queryInfo.pagesize = newSize
            // 需重新获取数据
            this.getUserList()
        },
        handleCurrentChange (currentPage) {
            // console.log(currentPage)
            this.queryInfo.pagenum = currentPage
            this.getUserList()
        },
        // 用户状态开关
        async userStateChange (userInfo) {
           // console.log(userInfo)
           const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
           // console.log(res)
           if (res.meta.status !== 200) {
               userInfo.mg_state = !userInfo.mg_state
               return this.$message.error('用户状态修改失败')
           }
           return this.$message.success('修改用户状态成功')
        },
        // 监听添加用户对话框关闭事件
        addDialogClosed () {
            this.$refs.addForm.resetFields()
        },
        // 点击按钮，添加新用户
        addUser () {
            this.$refs.addForm.validate(async valid => {
                // console.log(valid)
                if (!valid) return
                // 可以添加用户发起网络请求
                const { data: res } = await this.$http.post('users', this.addForm)
                if (res.meta.status !== 201) {
                    return this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                // 隐藏用户对话框
                this.dialogVisible = false
                this.getUserList()
            })
        },
        // 修改用户对话框展开事件
        async editDialogShow (id) {
            // console.log(id)
            const { data: res } = await this.$http.get(`users/${id}`)
            if (res.meta.status !== 200) return this.$message.error('查询用户信息失败')
            this.editForm = res.data
            this.editDialogVisible = true
        },
        // 修改表单监听事件
        editDialogClose () {
            this.$refs.editFormRefs.resetFields()
        },
        // 修改表单验证事件
        editUserInfo () {
            this.$refs.editFormRefs.validate(async valid => {
                if (!valid) return this.$message.error('表单验证失败')
                const { data: res } = await this.$http.put('users/' + this.editForm.id, {
                email: this.editForm.email,
                mobile: this.editForm.mobile
            })
            if (res.meta.status !== 200) {
                this.$message.error('修改用户信息失败')
            }
            this.$message.success('修改用户信息成功')
            this.editDialogVisible = false
            this.getUserList()
            })
        },
        // 删除用户操作
        async removeUserInfo (id) {
            // 询问是否删除操作
            const result = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            // console.log(result)
            // 如果用户确认删除，会返回字符串confirm,否则返回cancal
            if (result === 'cancal') {
                return this.$message.info('已取消删除')
            }
            const { data: res } = await this.$http.delete('users/' + id)
            if (res.meta.status !== 200) return this.$message.error('删除用户失败')
            this.$message.success('删除用户成功')
            this.getUserList()
        },
        // 修改用户角色
        async setRole (userInfo) {
            this.userInfo = userInfo
            // 在展示对话框之前获取所有角色列表
            const { data: res } = await this.$http.get('roles')
            if (res.meta.status !== 200) {
               return this.$message.error('获取角色列表失败')
            }
            this.$message.success('获取角色列表成功')
            this.rolesList = res.data
            // console.log(this.rolesList)
            this.setRoleDialogVisible = true
        },
        // 点击按钮分配角色
        async saveRoleInfo () {
            if (!this.selectedRoleId) {
                this.$message.error('请选择要分配的角色!')
            }
            // 编辑提交角色
            const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
            if (res.meta.status !== 200) {
                return this.$message.error('更新角色失败')
            }
            this.$message.success('更新角色成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        // 监听设置角色对话框关闭事件
        setRoleDialogClose () {
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>
